KVP 9mm Blow Back AR Bolt Carrier Group

The Kaw Valley Precision 9mm Blow Back Bolt Carrier Group is an optimal solution for your 9mm AR blow back carbine or pistol. Made in the USA and compatible with either GLOCK or Colt style AR magazines.

The KVP 9mm Bolt Carrier Group is constructed from US made 8620 steel and features a Nitride QPQ finish. This QPQ finish offers superior wear and weather resistant properties when compared to traditional phosphate finishing. The firing pin retention spring is considerably thicker which will reduce the chance of firing pin breakage which has been seen with lesser bolt carrier groups.

Features:

Works with GLOCK or Colt Style AR-9mm

USA Made 8620 Steel Carrier Construction

Nitride QPQ Finish

Heavy Duty Firing Pin Retaining Spring

15.5oz Total Weight

Note: Many aftermarket drop in triggers use modified hammers and can be temperamental in blowback systems. For the most consistent results a mil-spec fire control group is recommended. However, in KVP's testing, these aftermarket fire control groups should work in most circumstances: POF, Hiperfire EDT and 24 Series, Geissele, Timney, Rock River, and Spikes.

I used this KVP bolt and KVP barrel in a parts built 9mm pistol upper. Using MEAN arms Endomags to feed and eject casings, the build works 100%. The bolt has a really good finish to it and fits a standard M4 upper and unknown origin charging handle without problems. The price was great, the shipping was quick, I cannot find anything bad to say about this purchase.